期刊
出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/10934529.2011.609036
关键词
Hydrogen production; biodiesel; residual glycerol; Klebsiella pneumoniae
资金
- CNPQ
- CAPES
In this research the production of hydrogen by Klebsiella pneumoniae BLb01 using residual glycerol discharged from a biodiesel fuel production plant was investigated. Klebsiella pneumoniae BLb01 was isolated from a bacteria-rich sludge of an upflow anaerobic sludge blanket reactor (UASB) of a soybean processing plant. A Plackett-Burman design (P-B) and Response Surface Methodology (RSM) were employed to determine the optimal condition for enhanced hydrogen production. The maximal hydrogen production, which was 45.0mol% and with 98% of glycerol degradation, was achieved with the optimized medium with the following composition: 30 g L(-1) glycerol; 3 g L(-1) yeast ex tract 3 g L(-1) K(2)HPO(4); 1 g L(-1) KH(2)PO(4); temperature 39 degrees C and pH 9.0. These results show the ability of this new strain of effectively converting residual glycerol into value-added energy products.
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